Added mono module

modules/mono/editor/GodotSharpTools/StringExtensions.cs

@@ -0,0 +1,52 @@
+using System;
+using System.IO;
+
+namespace GodotSharpTools
+{
+    public static class StringExtensions
+    {
+        public static string RelativeToPath(this string path, string dir)
+        {
+            // Make sure the directory ends with a path separator
+            dir = Path.Combine(dir, " ").TrimEnd();
+
+            if (Path.DirectorySeparatorChar == '\\')
+                dir = dir.Replace("/", "\\") + "\\";
+
+            Uri fullPath = new Uri(Path.GetFullPath(path), UriKind.Absolute);
+            Uri relRoot = new Uri(Path.GetFullPath(dir), UriKind.Absolute);
+
+            return relRoot.MakeRelativeUri(fullPath).ToString();
+        }
+
+        public static string NormalizePath(this string path)
+        {
+            bool rooted = path.IsAbsolutePath();
+
+            path = path.Replace('\\', '/');
+
+            string[] parts = path.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
+
+            path = string.Join(Path.DirectorySeparatorChar.ToString(), parts).Trim();
+
+            return rooted ? Path.DirectorySeparatorChar.ToString() + path : path;
+        }
+
+        private static readonly string driveRoot = Path.GetPathRoot(Environment.CurrentDirectory);
+
+        public static bool IsAbsolutePath(this string path)
+        {
+            return path.StartsWith("/") || path.StartsWith("\\") || path.StartsWith(driveRoot);
+        }
+
+        public static string CsvEscape(this string value, char delimiter = ',')
+        {
+            bool hasSpecialChar = value.IndexOfAny(new char[] { '\"', '\n', '\r', delimiter }) != -1;
+
+            if (hasSpecialChar)
+                return "\"" + value.Replace("\"", "\"\"") + "\"";
+
+            return value;
+        }
+    }
+}